Controller check



F E WARD coNTnoLLER cHEc'K. APPLICATION FILED JUNE I 1922.

Patented Nov. 21, 1922.

I Inventor, 'Frederick Ellis Ward,

lorney.Y

Patented Nov. 21 1922.

UNITED STATES PATENT OFFICE.

FREDERICK ELLIS WARD, OF EAST ORANGE, NEWJERSEY, ASSIGNOR TO CROCKER-THEELER COMPANY, OF AMPERE, NEX? JERSEY, A CORPORATION OF NEW JERSEY.

CONTROLLER CHECK.

Application filed .Tune 1,

To all whom t may concern Be it known that l, FREDERICK ELLIS WARD, acitizen of the United States of America, and a resident of East Orange,county of Essex, and State of New Jersey, with a post-cnice address BOX57, Ampere, New Jersey, have invented certain new and usefulImprovements in Controller Checks, ot which the following is aspecilication.

This invention relates to a check for a hand operated electric motorcontroller or starting switch. wherein there are one or moreintermediate positions between-the oill position and the full runningposition where the circuits to the' motor are protected by theintroduction of inductance or resistance, and at which it is necessaryto pause in starting the motor until sufficient speed has been reachedto warrant the removal of such inductance or resistance. Such` a switchis shown in United States patent application Serial No. 475,785, filedJune 7, 1921.

The object of this invention is to provide a check for the switch atsuch intermediate position, and to provide means operated through thecontroller or switch handle which requires its movement in a differentdirection when thc check is reached in order to release the switch forfurther movement. Inadvertent passing of this position without pausingis thereby prevented. The construction is also such that on returningfrom the running position. to the olf position the movement is notlinterrupted by the check.

.lin the accompanying sheet o1' drawings which forms a part ol" thisspecitication;

Figure 1 is a front view of a portion or' a motor starting switch, thecover oi' the casing being omitted, which shows a crank handle and checkassociated in accordance with this invention,

Fig. 2 is a side view of the same,

Fig. 3 is a vertical section on the line III- III of Fig. 1, the switchbeing in full running posit-ion,

Fig. 4: is a vertical section on the line IV-IV of Fig. 1, the switchbeing in the checked position, and

Fi 5 is a section on the oblique line V-- of Fig. 4 in projectedposition from Fig. 4.

A switch member 10, rotatable about an axis AWA. carries cylindricalcontact segments 11 which contact in operated positions of the switchmember with wingers 12, 12.

1922. Serial No. 565,094.

.ing is a bearing 14 in line with the axis of Vthe switch. A shaftlpasses through the bearing anda connecting` member 16 is attached tothe inner end of the shaft and couples it to the switch member. Thisconnecting member carries an armature 17 which is brought against anelectromagnet 18 and held thereby when the switch isvin its fullyoperated and closed position. A spring 19 returns the switch to openposition when the current is cut oli from the magnet.

Outside of the casing the shaft has nn arm 20, and pivoted to this armby a pin 21 is a handle member which consists of a channel-shaped partQ2 and a handle Q3 riveted to one end of the channel-shaped part. Thechannel-shaped part has a bentover lug 22a proj ecting under the armwhich is notched to permit a limited outward movement of thechannel-shaped part in the plane of the controller axis and preferablyin the direction of its axis. A spring 24 presses the handle memberoutward from the arm. The sides of the channel-shaped part engage thesides of the arm so that' force applied through the handle to operatethe switch is communicated through the arm and not through the pivotpin. A check 25 is pivoted to a block 26 which is riveted to the innerside of the casing and the check normally projects through a hole in thecasing into the path of the arm so as to check the switch at thestarting position when it is being moved toward full running position. Aspring 27 holds the check in its normal position. The top of the checkis beveled at 25a and the under side of the arm is beveled at 20a asshown in Fig. 5, so that on return movement the arm will depress and assover the check and not be stopped tliereby. The channel-shaped part hasa prong 28 so positioned as to be over the check when the arm is incontact with the face of the check so that if the handle member is thendepressed the check will be pushed out of the path of the arm cansucceedl one another only with a pause.'

Initial operation of the switch from the oli' to the starting positionis preferably effected Without depressing the handle, for

if the handlevis depressed during this part of the movement the pronginstead Will come in. contact with the face of the check and then thehandle 'will have to be lifted to bring the prong on top of the checkand again depressed before `further progress can be made toward fullrunning position.

I claim, Y

l. Ina controller, al1-arm for operating the controller, a handle memberfor operating the arm having a movement With the arm and also intheplane` of the controller axis, and a movable check normally in the .pathof the arm and constructed to `beven- 1 ,assenze gaged by the handlemember when the arm is in cont-act with the check and to push the checkout of the patch of the arm.

2. In a controller, an arm for operating the controller, a handle memberpivoted to the arm for operating the arm having a `movement With the armand also in the sides'of which engage the arm `for operating the armhaving a movement with the arm and also inthe plane of the controlleraxis and a movable check normally in the path *of the arm constructed tobe engaged bythe handle member When the arm is in contact With the checkand to pnsh the cheek out of the path of the arm.

FREDERICK'ELLIS WARD

